[iuhutch]

Yes 40% is a good place to start.

[mojobmw_e90]

Do you have a backend flash iuhutch?

[iuhutch]

Originally Posted by mojobmw_e90

Do you have a backend flash iuhutch?

No I do not. Waiting on Cobb or someone else to break into my dme. Kinda sucks as i'm dct so i dont run the above map anymore

[DevonD]

Originally Posted by iuhutch

You should be just fine. I'm telling you go to map2 from map5 especially when running 93 only. Map5 is an autotune map that is specifically developed for ethanol use up to ~50%.

I'd been running map2 for the past 6 weeks on 93 and the car felt solid. I switched to map5 for giggles last weekend since it warmed up a bit and the car ran like shit. even after four 2-3-4 gear pulls, it still felt down on power compared to map2.

I dont even touch map5 anymore. I run map2 for 93 and I run map6 for when I'm mixing in ethanol. I do have stage 1 pure, as does the OP...

That’s interesting. I just have a downpipe and 94 octane and map 5 is noticeably faster than map 2. I have logged it and Map 5 is making nearly 18 psi consistently, whereas map 2 was 14 psi or whatever it is.

I have almost always heard Terry recommend map 5. The auto-learn runs you did were from 2000-7000rpm in 3rd gear? After doing a few solid pulls from 1500-7000 rpm in 3rd gear my car pulls like a maniac!

[iuhutch]

Originally Posted by DevonD

That’s interesting. I just have a downpipe and 94 octane and map 5 is noticeably faster than map 2. I have logged it and Map 5 is making nearly 18 psi consistently, whereas map 2 was 14 psi or whatever it is.

I have almost always heard Terry recommend map 5. The auto-learn runs you did were from 2000-7000rpm in 3rd gear? After doing a few solid pulls from 1500-7000 rpm in 3rd gear my car pulls like a maniac!

After proper dial in, I can't argue it isn't faster as it will allow a higher boost setting.

I did 4 second through fourth pulls and it still felt bad after switching to it. My map 6 is dialed in so I just switched right over to it. I can run whatever I want in map 6 and I like that flexibility versus algorithms that set that for me. Map 6 is also a map that supports tapering however you want it to which is huge for the stg1 and stg2 guys that have turbos that hold more boost and for longer.

Map 5 is recommended mostly for stock turbo guys running ethanol combinations. I don't think I've ever seen T recommend map 5 for non-ethanol running setups.

[JETmn]

Originally Posted by DevonD

That’s interesting. I just have a downpipe and 94 octane and map 5 is noticeably faster than map 2. I have logged it and Map 5 is making nearly 18 psi consistently, whereas map 2 was 14 psi or whatever it is.

I have almost always heard Terry recommend map 5. The auto-learn runs you did were from 2000-7000rpm in 3rd gear? After doing a few solid pulls from 1500-7000 rpm in 3rd gear my car pulls like a maniac!

I am pretty shocked you are getting 18psi on 94. I think you are actually over 94, bonus! My issue with map 5 is that it wasn't always consistent. Sometimes it would be great, then every once in a while it would just be flat. I couldn't find any rhyme or reason for it.

[DevonD]

Originally Posted by JETmn

I am pretty shocked you are getting 18psi on 94. I think you are actually over 94, bonus! My issue with map 5 is that it wasn't always consistent. Sometimes it would be great, then every once in a while it would just be flat. I couldn't find any rhyme or reason for it.

It's really 17.6 psi or something but I agree, it's high. Terry was surprised too when I sent him the logs. He told me to install the FF wires to allow better control over fueling since I'm running such high boost. Or, if I didn’t install the FF wires, turn it down to map 2. I cant figure out how to attach the data from the log to this post, otherwise I would.

That is definitely strange map 5 would fall flat on you sometimes. You've updated to ISO?

[JETmn]

Yep, been ISO since I bought it a year ago.

[Jsoboti]

Originally Posted by iuhutch

Yes 40% is a good place to start.

That's with a Pure stage 1 though or stock turbo? Sorry can't remember

[iuhutch]

Originally Posted by Jsoboti

That's with a Pure stage 1 though or stock turbo? Sorry can't remember

You can run up to 40% e85 on ISO and with FF wires regardless of turbo. The PURE stg1 turbo just allows us to hold more boost and for longer through the RPM curve.

i.e. 18psi through 6000 and ~16psi at 6500 vs stock runs 17/18 till ~4500 or so and drops on its face down to about 10psi at 6500...

[Jsoboti]

Originally Posted by iuhutch

You can run up to 40% e85 on ISO and with FF wires regardless of turbo. The PURE stg1 turbo just allows us to hold more boost and for longer through the RPM curve.

i.e. 18psi through 6000 and ~16psi at 6500 vs stock runs 17/18 till ~4500 or so and drops on its face down to about 10psi at 6500...

Yeah I have FF wires and usually run about E40. I was referring To your map 6 setting. I probably have to back them down a bit without the pure installed

[iuhutch]

Originally Posted by Jsoboti

Yeah I have FF wires and usually run about E40. I was referring To your map 6 setting. I probably have to back them down a bit without the pure installed

Subtract 3 from each of the rpm boost settings fields.That should give you a good place to start....log and fine tune from there

[Jsoboti]

Originally Posted by iuhutch

Subtract 3 from each of the rpm boost settings fields.That should give you a good place to start....log and fine tune from there

Awesome, thanks!

[loesch]

Originally Posted by mojobmw_e90

Rt challengers make about 290whp.I owned a srt8 300 and stock dynoed 345whp and was rated at 425 crank.with a jb4 alone you should be able to easily walk both rt and srt on pump gas due to almost same hp and bmw a lot lighter.

For what it's worth there was an SRT8 Challenger with a tune / intake on 93 + octane booster with drag radials at the track this past summer. It's a slow track (slight uphill) and he was running 12.4 @ 110. The same day I was doing 12.89 @ 112 with 2.1 second 60ft on stock turbo.

These are the map 6 targets I used on the stock turbo w/ E85
1500 12.0
2000 14.5
2500 16.0
3000 17.0
3500 18.0
4000 18.5
4500 18.5
5000 16.2
5500 15.0
6000 14.0
6500 13.2
7000 12.4

[JETmn]

Alright, the guy with the S4 wants to do some better runs. I am going to toss some E85 in this weekend and get map 6 set up. Should be doing some runs Monday or Tuesday! He bought the car modded from a buddy when the dealers didn't really want it with the mods on it. He came to the dark side and bought a new M3

[tkong]

Originally Posted by JETmn

Alright, the guy with the S4 wants to do some better runs. I am going to toss some E85 in this weekend and get map 6 set up. Should be doing some runs Monday or Tuesday! He bought the car modded from a buddy when the dealers didn't really want it with the mods on it. He came to the dark side and bought a new M3

Make sure to get some video

[JETmn]

Originally Posted by tkong

Make sure to get some video

Good idea, but not sure I am going to be able to. We are doing the runs on the way home after work so it will just be me in the car.

[iuhutch]

Originally Posted by JETmn

Good idea, but not sure I am going to be able to. We are doing the runs on the way home after work so it will just be me in the car.

Gopro with suction mount!

[JETmn]

Hey Hutch, I threw in your settings for map 6 and I am only getting 16 psi. I noticed that yours is basically identical to what Terry recommends as a starting point. I think I might have forgot to change the All Map CPS to 30 but it looks like that it just a timing correction and shouldn't affect boost. I just bought the JB4 mobile app and I am going to double check that the settings took correctly, but max boost before was 13.5 on map 6, so it should have taken the correction. It almost seems like it is taking the 16.0 setting from the 1500 setting and applying it across the whole map.

[iuhutch]

Originally Posted by JETmn

Hey Hutch, I threw in your settings for map 6 and I am only getting 16 psi. I noticed your FF/Wastegate adaptation is different from what mine was (I think mine was 45) and also the Future use A was blank on mine and you have 20. I changed them to your setting, but maybe I shouldn't have?

I never touch those settings as most of what I had on those came from Map 5 and adoption over time. 20psi is very aggressive too and its weird but i'd only ever hit those with the stock intake in?

So basically you were targeting 20 and only hitting 16? Try lowering to 18 and reset your ff and FUA fields...

[JETmn]

Originally Posted by iuhutch

I never touch those settings as most of what I had on those came from Map 5 and adoption over time. 20psi is very aggressive too and its weird but i'd only ever hit those with the stock intake in?

So basically you were targeting 20 and only hitting 16? Try lowering to 18 and reset your ff and FUA fields...

Yeah, I was hitting a solid 18 on map 5. Edited my post above after doing some research. Going to play around on the way home and see if I can get it to meet the boost target.

[JETmn]

Alright, my map 6 settings didn't take last time. Anyone else had an issue with boost going well over target? I had boost set like above and 20psi max and I maxed out the MAP sensor at 21.6psi. At the 13.5 set point I was hitting 16-17. Boost was rock solid on map 2, so it has to be something with my map 6 settings.

Going from map 2 to map 6, holy shit! That S4 is toast Hopefully get some runs in tonight. I dropped my setpoints down to 19 for now from 20.